Jacobsen AR3, Technical/Repair Manual

Page: 242 / 342

HYDRAULICS
4181384 First Edition 6-51
6
Disassembly, Inspection, and Assembly
See Figure 6-47.
Figure 6-47
1. Remove, inspect, and replace mow/brake valve
components as needed.
NOTICE
2. Clean all parts using clean solvent, and dry using
compressed air.
3. Inspect all parts for wear or damage. Replace parts
as needed.
Assembly Notes
NOTICE
• Assemble mow/brake valve by reversing the order of
removal.
• Lubricate all O-rings prior to assembly.
• Tighten the mow solenoid valve (8) to 20 lb-ft
(27 N·m).
• Tighten the brake solenoid valve (3) to 22 lb-ft
(30 N·m).
• Tighten the load control valve (4) to 50 lb-ft (68 N·m).
• Tighten the relief valve (2) to 37 lb-ft (50 N·m).
• Tighten all solenoid coils (1) to 3 lb-ft (36 lb-in.)
(4 N·m).
• Tighten hollow hex plugs (6) to 5 lb-ft (58 lb-in.)
(6.5 N·m).
• Tighten hollow hex plugs (5) to 37 lb-ft (50 N·m).
1 Solenoid Coil (2) 5 Hollow Hex Plug
2 Relief Valve 6 Hollow Hex Plug (6)
3 Brake Solenoid Valve 7 Mow/Brake Valve Block
4 Load Control Valve 8 Mow Solenoid Valve
It is important that all components are absolutely
clean, as contamination can result in serious
damage and/or improper operation.
Never use shop towels or rags to dry parts after
cleaning, as lint may clog passages. Dry parts
using compressed air.
TN1338
1
3
4
2 1
5 6
6
8
7
It is important that all components are absolutely
clean, as contamination can result in serious
damage and/or improper operation.
Never use shop towels or rags to dry parts after
cleaning, as lint may clog passages. Dry parts
using compressed air.
Required Materials
Seal Kit, Load Control Valve (Jacobsen P/N 4137270)
Seal Kit, Brake Solenoid Valve
(Jacobsen P/N 4137265)
Seal Kit, Mow Solenoid Valve
(Jacobsen P/N 4137271)
Seal Kit, Relief Valve (Jacobsen P/N 4137272)